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path: root/drivers/input/misc/uinput.c
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Diffstat (limited to 'drivers/input/misc/uinput.c')
-rw-r--r--drivers/input/misc/uinput.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index a56ad4ba8fe2..2bcfa0b35061 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -37,6 +37,7 @@
37#include <linux/fs.h> 37#include <linux/fs.h>
38#include <linux/miscdevice.h> 38#include <linux/miscdevice.h>
39#include <linux/uinput.h> 39#include <linux/uinput.h>
40#include <linux/smp_lock.h>
40 41
41static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) 42static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
42{ 43{
@@ -222,6 +223,7 @@ static int uinput_open(struct inode *inode, struct file *file)
222 if (!newdev) 223 if (!newdev)
223 return -ENOMEM; 224 return -ENOMEM;
224 225
226 lock_kernel();
225 mutex_init(&newdev->mutex); 227 mutex_init(&newdev->mutex);
226 spin_lock_init(&newdev->requests_lock); 228 spin_lock_init(&newdev->requests_lock);
227 init_waitqueue_head(&newdev->requests_waitq); 229 init_waitqueue_head(&newdev->requests_waitq);
@@ -229,6 +231,7 @@ static int uinput_open(struct inode *inode, struct file *file)
229 newdev->state = UIST_NEW_DEVICE; 231 newdev->state = UIST_NEW_DEVICE;
230 232
231 file->private_data = newdev; 233 file->private_data = newdev;
234 unlock_kernel();
232 235
233 return 0; 236 return 0;
234} 237}